rims421
Silver Member
I have a Cub Cadet 7275.
The tractor belches blue smoke when running.
It is also hard to start when warmed up.
When I start the machine when cold after heating it up with the glow plugs for a good long time it starts right up.
After it has been running and up to temp. it does not want to start unless I engage the glow plugs again for a very long time. When I got the machine it would start up when warm without using the glow plugs at all. I have changed the air filter, pulled the injectors and had them pop tested ( they were good) and changed the oil.
I suspect that the valve seals may be leaking allowing oil to drip into the cylinders. By engaging the glow plugs for a good long time it heats up the oil/ fuel mix enough to ignite it.I noticed that when i changed the oil last time I got a very large puff of smoke upon start up.
Anyone have any other ideas? The level of the oil on the dipstick does not seem to be lower between oil changes.
The machine runs fine otherwise.
If it is the valve seals can they be replaced without removing the head? /forums/images/graemlins/confused.gif
The tractor belches blue smoke when running.
It is also hard to start when warmed up.
When I start the machine when cold after heating it up with the glow plugs for a good long time it starts right up.
After it has been running and up to temp. it does not want to start unless I engage the glow plugs again for a very long time. When I got the machine it would start up when warm without using the glow plugs at all. I have changed the air filter, pulled the injectors and had them pop tested ( they were good) and changed the oil.
I suspect that the valve seals may be leaking allowing oil to drip into the cylinders. By engaging the glow plugs for a good long time it heats up the oil/ fuel mix enough to ignite it.I noticed that when i changed the oil last time I got a very large puff of smoke upon start up.
Anyone have any other ideas? The level of the oil on the dipstick does not seem to be lower between oil changes.
The machine runs fine otherwise.
If it is the valve seals can they be replaced without removing the head? /forums/images/graemlins/confused.gif